UV and optical photometric data for SN 2013by Virtual Observatory Resource

Authors
  1. Valenti S.
  2. Sand D.
  3. Stritzinger M.
  4. Howell D.A.
  5. Arcavi I.
  6. McCully C.,Childress M.J.
  7. Hsiao E.Y.
  8. Contreras C.
  9. Morrell N.
  10. Phillips M.M.,Gromadzki M.
  11. Kirshner R.P.
  12. Marion G.H.
  13. Published by
    CDS
Abstract

We present multiband ultraviolet and optical light curves, as well as visual-wavelength and near-infrared spectroscopy of the Type II linear (IIL) supernova (SN) 2013by. We show that SN 2013by and other SNe IIL in the literature, after their linear decline phase that start after maximum, have a sharp light-curve decline similar to that seen in SNe IIP. This light-curve feature has rarely been observed in other SNe IIL due to their relative rarity and the intrinsic faintness of this particular phase of the light curve. We suggest that the presence of this drop could be used as a physical parameter to distinguish between subclasses of SNe II, rather than their light-curve decline rate shortly after peak. Close inspection of the spectra of SN 2013by indicate asymmetric line profiles and signatures of high-velocity hydrogen. Late (~90d after explosion) near-infrared spectra of SN 2013by exhibit oxygen lines, indicating significant mixing within the ejecta. From the late-time light curve, we estimate that 0.029 M_{sun}_ of ^56^Ni was synthesized during the explosion. It is also shown that the V-band light-curve slope is responsible for part of the scatter in the luminosity (V magnitude 50d after explosion) versus ^56^Ni relation. Our observations of SN 2013by and other SNe IIL through the onset of the nebular phase indicate that their progenitors are similar to those of SNe IIP.

Keywords
  1. supernovae
  2. ultraviolet-photometry
  3. visible-astronomy
  4. broad-band-photometry
  5. infrared-photometry
Bibliographic source Bibcode
2015MNRAS.448.2608V
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/448/2608
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/448/2608
Document Object Identifer DOI
doi:10.26093/cds/vizier.74482608

Access

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https://tapvizier.cds.unistra.fr/TAPVizieR/tap
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History

2017-11-27T12:57:23Z
Resource record created
2017-11-27T12:57:23Z
Created
2024-08-14T20:20:14Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr